Commit | Line | Data |
a0d0e21e |
1 | /* util.c |
a687059c |
2 | * |
a0d0e21e |
3 | * Copyright (c) 1991-1994, Larry Wall |
a687059c |
4 | * |
d48672a2 |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
8d063cd8 |
7 | * |
8d063cd8 |
8 | */ |
a0d0e21e |
9 | |
10 | /* |
11 | * "Very useful, no doubt, that was to Saruman; yet it seems that he was |
12 | * not content." --Gandalf |
13 | */ |
8d063cd8 |
14 | |
8d063cd8 |
15 | #include "EXTERN.h" |
8d063cd8 |
16 | #include "perl.h" |
62b28dd9 |
17 | |
6eb13c3b |
18 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
a687059c |
19 | #include <signal.h> |
62b28dd9 |
20 | #endif |
a687059c |
21 | |
ecfc5424 |
22 | /* Omit this -- it causes too much grief on mixed systems. |
85e6fe83 |
23 | #ifdef I_UNISTD |
8990e307 |
24 | # include <unistd.h> |
25 | #endif |
ecfc5424 |
26 | */ |
8990e307 |
27 | |
a687059c |
28 | #ifdef I_VFORK |
29 | # include <vfork.h> |
30 | #endif |
31 | |
5d94fbed |
32 | #ifdef I_LIMITS /* Needed for cast_xxx() functions below. */ |
33 | # include <limits.h> |
34 | #endif |
35 | |
94b6baf5 |
36 | /* Put this after #includes because fork and vfork prototypes may |
37 | conflict. |
38 | */ |
39 | #ifndef HAS_VFORK |
40 | # define vfork fork |
41 | #endif |
42 | |
fe14fcc3 |
43 | #ifdef I_FCNTL |
44 | # include <fcntl.h> |
45 | #endif |
46 | #ifdef I_SYS_FILE |
47 | # include <sys/file.h> |
48 | #endif |
49 | |
8d063cd8 |
50 | #define FLUSH |
8d063cd8 |
51 | |
a0d0e21e |
52 | #ifdef LEAKTEST |
53 | static void xstat _((void)); |
54 | #endif |
55 | |
de3bb511 |
56 | #ifndef safemalloc |
57 | |
8d063cd8 |
58 | /* paranoid version of malloc */ |
59 | |
a687059c |
60 | /* NOTE: Do not call the next three routines directly. Use the macros |
61 | * in handy.h, so that we can easily redefine everything to do tracking of |
62 | * allocated hunks back to the original New to track down any memory leaks. |
63 | */ |
64 | |
8d063cd8 |
65 | char * |
66 | safemalloc(size) |
62b28dd9 |
67 | #ifdef MSDOS |
68 | unsigned long size; |
69 | #else |
8d063cd8 |
70 | MEM_SIZE size; |
62b28dd9 |
71 | #endif /* MSDOS */ |
8d063cd8 |
72 | { |
2304df62 |
73 | char *ptr; |
62b28dd9 |
74 | #ifdef MSDOS |
75 | if (size > 0xffff) { |
76 | fprintf(stderr, "Allocation too large: %lx\n", size) FLUSH; |
79072805 |
77 | my_exit(1); |
62b28dd9 |
78 | } |
79 | #endif /* MSDOS */ |
34de22dd |
80 | #ifdef DEBUGGING |
81 | if ((long)size < 0) |
463ee0b2 |
82 | croak("panic: malloc"); |
34de22dd |
83 | #endif |
8d063cd8 |
84 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
79072805 |
85 | #if !(defined(I286) || defined(atarist)) |
1050c9ca |
86 | DEBUG_m(fprintf(Perl_debug_log,"0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
79072805 |
87 | #else |
1050c9ca |
88 | DEBUG_m(fprintf(Perl_debug_log,"0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
8d063cd8 |
89 | #endif |
90 | if (ptr != Nullch) |
91 | return ptr; |
7c0587c8 |
92 | else if (nomemok) |
93 | return Nullch; |
8d063cd8 |
94 | else { |
79072805 |
95 | fputs(no_mem,stderr) FLUSH; |
96 | my_exit(1); |
8d063cd8 |
97 | } |
98 | /*NOTREACHED*/ |
99 | } |
100 | |
101 | /* paranoid version of realloc */ |
102 | |
103 | char * |
104 | saferealloc(where,size) |
105 | char *where; |
62b28dd9 |
106 | #ifndef MSDOS |
8d063cd8 |
107 | MEM_SIZE size; |
62b28dd9 |
108 | #else |
109 | unsigned long size; |
110 | #endif /* MSDOS */ |
8d063cd8 |
111 | { |
112 | char *ptr; |
ecfc5424 |
113 | #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) |
8d063cd8 |
114 | char *realloc(); |
ecfc5424 |
115 | #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ |
8d063cd8 |
116 | |
62b28dd9 |
117 | #ifdef MSDOS |
118 | if (size > 0xffff) { |
119 | fprintf(stderr, "Reallocation too large: %lx\n", size) FLUSH; |
79072805 |
120 | my_exit(1); |
62b28dd9 |
121 | } |
122 | #endif /* MSDOS */ |
378cc40b |
123 | if (!where) |
463ee0b2 |
124 | croak("Null realloc"); |
34de22dd |
125 | #ifdef DEBUGGING |
126 | if ((long)size < 0) |
463ee0b2 |
127 | croak("panic: realloc"); |
34de22dd |
128 | #endif |
8d063cd8 |
129 | ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */ |
79072805 |
130 | |
131 | #if !(defined(I286) || defined(atarist)) |
132 | DEBUG_m( { |
1050c9ca |
133 | fprintf(Perl_debug_log,"0x%x: (%05d) rfree\n",where,an++); |
134 | fprintf(Perl_debug_log,"0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); |
79072805 |
135 | } ) |
136 | #else |
137 | DEBUG_m( { |
1050c9ca |
138 | fprintf(Perl_debug_log,"0x%lx: (%05d) rfree\n",where,an++); |
139 | fprintf(Perl_debug_log,"0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); |
79072805 |
140 | } ) |
8d063cd8 |
141 | #endif |
79072805 |
142 | |
8d063cd8 |
143 | if (ptr != Nullch) |
144 | return ptr; |
7c0587c8 |
145 | else if (nomemok) |
146 | return Nullch; |
8d063cd8 |
147 | else { |
79072805 |
148 | fputs(no_mem,stderr) FLUSH; |
149 | my_exit(1); |
8d063cd8 |
150 | } |
151 | /*NOTREACHED*/ |
152 | } |
153 | |
154 | /* safe version of free */ |
155 | |
a687059c |
156 | void |
8d063cd8 |
157 | safefree(where) |
158 | char *where; |
159 | { |
79072805 |
160 | #if !(defined(I286) || defined(atarist)) |
1050c9ca |
161 | DEBUG_m( fprintf(Perl_debug_log,"0x%x: (%05d) free\n",where,an++)); |
79072805 |
162 | #else |
1050c9ca |
163 | DEBUG_m( fprintf(Perl_debug_log,"0x%lx: (%05d) free\n",where,an++)); |
8d063cd8 |
164 | #endif |
378cc40b |
165 | if (where) { |
de3bb511 |
166 | /*SUPPRESS 701*/ |
378cc40b |
167 | free(where); |
168 | } |
8d063cd8 |
169 | } |
170 | |
1050c9ca |
171 | /* safe version of calloc */ |
172 | |
173 | char * |
174 | safecalloc(count, size) |
175 | MEM_SIZE count; |
176 | MEM_SIZE size; |
177 | { |
178 | char *ptr; |
179 | |
180 | #ifdef MSDOS |
181 | if (size * count > 0xffff) { |
182 | fprintf(stderr, "Allocation too large: %lx\n", size * count) FLUSH; |
183 | my_exit(1); |
184 | } |
185 | #endif /* MSDOS */ |
186 | #ifdef DEBUGGING |
187 | if ((long)size < 0 || (long)count < 0) |
188 | croak("panic: calloc"); |
189 | #endif |
190 | #if !(defined(I286) || defined(atarist)) |
191 | DEBUG_m(fprintf(stderr,"0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
192 | #else |
193 | DEBUG_m(fprintf(stderr,"0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
194 | #endif |
195 | size *= count; |
196 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
197 | if (ptr != Nullch) { |
198 | memset((void*)ptr, 0, size); |
199 | return ptr; |
200 | } |
201 | else if (nomemok) |
202 | return Nullch; |
203 | else { |
204 | fputs(no_mem,stderr) FLUSH; |
205 | my_exit(1); |
206 | } |
207 | /*NOTREACHED*/ |
208 | } |
209 | |
de3bb511 |
210 | #endif /* !safemalloc */ |
211 | |
a687059c |
212 | #ifdef LEAKTEST |
213 | |
214 | #define ALIGN sizeof(long) |
8d063cd8 |
215 | |
216 | char * |
a687059c |
217 | safexmalloc(x,size) |
79072805 |
218 | I32 x; |
a687059c |
219 | MEM_SIZE size; |
8d063cd8 |
220 | { |
a687059c |
221 | register char *where; |
8d063cd8 |
222 | |
a687059c |
223 | where = safemalloc(size + ALIGN); |
224 | xcount[x]++; |
225 | where[0] = x % 100; |
226 | where[1] = x / 100; |
227 | return where + ALIGN; |
8d063cd8 |
228 | } |
8d063cd8 |
229 | |
230 | char * |
a687059c |
231 | safexrealloc(where,size) |
232 | char *where; |
233 | MEM_SIZE size; |
234 | { |
a0d0e21e |
235 | register char *new = saferealloc(where - ALIGN, size + ALIGN); |
236 | return new + ALIGN; |
a687059c |
237 | } |
238 | |
239 | void |
240 | safexfree(where) |
241 | char *where; |
242 | { |
79072805 |
243 | I32 x; |
a687059c |
244 | |
245 | if (!where) |
246 | return; |
247 | where -= ALIGN; |
248 | x = where[0] + 100 * where[1]; |
249 | xcount[x]--; |
250 | safefree(where); |
251 | } |
252 | |
1050c9ca |
253 | char * |
254 | safexcalloc(x,count,size) |
255 | I32 x; |
256 | MEM_SIZE count; |
257 | MEM_SIZE size; |
258 | { |
259 | register char *where; |
260 | |
261 | where = safexmalloc(x, size * count + ALIGN); |
262 | xcount[x]++; |
263 | memset((void*)where + ALIGN, 0, size * count); |
264 | where[0] = x % 100; |
265 | where[1] = x / 100; |
266 | return where + ALIGN; |
267 | } |
268 | |
7c0587c8 |
269 | static void |
a687059c |
270 | xstat() |
8d063cd8 |
271 | { |
79072805 |
272 | register I32 i; |
8d063cd8 |
273 | |
a687059c |
274 | for (i = 0; i < MAXXCOUNT; i++) { |
de3bb511 |
275 | if (xcount[i] > lastxcount[i]) { |
a687059c |
276 | fprintf(stderr,"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]); |
277 | lastxcount[i] = xcount[i]; |
8d063cd8 |
278 | } |
279 | } |
8d063cd8 |
280 | } |
a687059c |
281 | |
282 | #endif /* LEAKTEST */ |
8d063cd8 |
283 | |
284 | /* copy a string up to some (non-backslashed) delimiter, if any */ |
285 | |
286 | char * |
a687059c |
287 | cpytill(to,from,fromend,delim,retlen) |
62b28dd9 |
288 | register char *to; |
289 | register char *from; |
a687059c |
290 | register char *fromend; |
a0d0e21e |
291 | register int delim; |
79072805 |
292 | I32 *retlen; |
8d063cd8 |
293 | { |
a687059c |
294 | char *origto = to; |
295 | |
296 | for (; from < fromend; from++,to++) { |
378cc40b |
297 | if (*from == '\\') { |
298 | if (from[1] == delim) |
299 | from++; |
300 | else if (from[1] == '\\') |
301 | *to++ = *from++; |
302 | } |
8d063cd8 |
303 | else if (*from == delim) |
304 | break; |
305 | *to = *from; |
306 | } |
307 | *to = '\0'; |
a687059c |
308 | *retlen = to - origto; |
8d063cd8 |
309 | return from; |
310 | } |
311 | |
312 | /* return ptr to little string in big string, NULL if not found */ |
378cc40b |
313 | /* This routine was donated by Corey Satten. */ |
8d063cd8 |
314 | |
315 | char * |
316 | instr(big, little) |
378cc40b |
317 | register char *big; |
318 | register char *little; |
319 | { |
320 | register char *s, *x; |
79072805 |
321 | register I32 first; |
378cc40b |
322 | |
a687059c |
323 | if (!little) |
324 | return big; |
325 | first = *little++; |
378cc40b |
326 | if (!first) |
327 | return big; |
328 | while (*big) { |
329 | if (*big++ != first) |
330 | continue; |
331 | for (x=big,s=little; *s; /**/ ) { |
332 | if (!*x) |
333 | return Nullch; |
334 | if (*s++ != *x++) { |
335 | s--; |
336 | break; |
337 | } |
338 | } |
339 | if (!*s) |
340 | return big-1; |
341 | } |
342 | return Nullch; |
343 | } |
8d063cd8 |
344 | |
a687059c |
345 | /* same as instr but allow embedded nulls */ |
346 | |
347 | char * |
348 | ninstr(big, bigend, little, lend) |
349 | register char *big; |
350 | register char *bigend; |
351 | char *little; |
352 | char *lend; |
8d063cd8 |
353 | { |
a687059c |
354 | register char *s, *x; |
79072805 |
355 | register I32 first = *little; |
a687059c |
356 | register char *littleend = lend; |
378cc40b |
357 | |
a0d0e21e |
358 | if (!first && little >= littleend) |
a687059c |
359 | return big; |
de3bb511 |
360 | if (bigend - big < littleend - little) |
361 | return Nullch; |
a687059c |
362 | bigend -= littleend - little++; |
363 | while (big <= bigend) { |
364 | if (*big++ != first) |
365 | continue; |
366 | for (x=big,s=little; s < littleend; /**/ ) { |
367 | if (*s++ != *x++) { |
368 | s--; |
369 | break; |
370 | } |
371 | } |
372 | if (s >= littleend) |
373 | return big-1; |
378cc40b |
374 | } |
a687059c |
375 | return Nullch; |
376 | } |
377 | |
378 | /* reverse of the above--find last substring */ |
379 | |
380 | char * |
381 | rninstr(big, bigend, little, lend) |
382 | register char *big; |
383 | char *bigend; |
384 | char *little; |
385 | char *lend; |
386 | { |
387 | register char *bigbeg; |
388 | register char *s, *x; |
79072805 |
389 | register I32 first = *little; |
a687059c |
390 | register char *littleend = lend; |
391 | |
a0d0e21e |
392 | if (!first && little >= littleend) |
a687059c |
393 | return bigend; |
394 | bigbeg = big; |
395 | big = bigend - (littleend - little++); |
396 | while (big >= bigbeg) { |
397 | if (*big-- != first) |
398 | continue; |
399 | for (x=big+2,s=little; s < littleend; /**/ ) { |
400 | if (*s++ != *x++) { |
401 | s--; |
402 | break; |
403 | } |
404 | } |
405 | if (s >= littleend) |
406 | return big+1; |
378cc40b |
407 | } |
a687059c |
408 | return Nullch; |
378cc40b |
409 | } |
a687059c |
410 | |
f0c5b223 |
411 | /* Initialize locale (and the fold[] array).*/ |
412 | int |
1050c9ca |
413 | perl_init_i18nl10n(printwarn) |
f0c5b223 |
414 | int printwarn; |
415 | { |
416 | int ok = 1; |
417 | /* returns |
418 | * 1 = set ok or not applicable, |
419 | * 0 = fallback to C locale, |
420 | * -1 = fallback to C locale failed |
421 | */ |
422 | #if defined(HAS_SETLOCALE) && defined(LC_CTYPE) |
423 | char * lang = getenv("LANG"); |
424 | char * lc_all = getenv("LC_ALL"); |
425 | char * lc_ctype = getenv("LC_CTYPE"); |
426 | int i; |
427 | |
428 | if (setlocale(LC_CTYPE, "") == NULL && (lc_all || lc_ctype || lang)) { |
429 | if (printwarn) { |
430 | fprintf(stderr, "warning: setlocale(LC_CTYPE, \"\") failed.\n"); |
431 | fprintf(stderr, |
432 | "warning: LC_ALL = \"%s\", LC_CTYPE = \"%s\", LANG = \"%s\",\n", |
433 | lc_all ? lc_all : "(null)", |
434 | lc_ctype ? lc_ctype : "(null)", |
435 | lang ? lang : "(null)" |
436 | ); |
437 | fprintf(stderr, "warning: falling back to the \"C\" locale.\n"); |
438 | } |
439 | ok = 0; |
440 | if (setlocale(LC_CTYPE, "C") == NULL) |
441 | ok = -1; |
442 | } |
443 | |
444 | for (i = 0; i < 256; i++) { |
445 | if (isUPPER(i)) fold[i] = toLOWER(i); |
446 | else if (isLOWER(i)) fold[i] = toUPPER(i); |
447 | else fold[i] = i; |
448 | } |
449 | #endif |
450 | return ok; |
451 | } |
452 | |
378cc40b |
453 | void |
79072805 |
454 | fbm_compile(sv, iflag) |
455 | SV *sv; |
456 | I32 iflag; |
378cc40b |
457 | { |
a687059c |
458 | register unsigned char *s; |
459 | register unsigned char *table; |
79072805 |
460 | register U32 i; |
461 | register U32 len = SvCUR(sv); |
462 | I32 rarest = 0; |
463 | U32 frequency = 256; |
464 | |
748a9306 |
465 | if (len > 255) |
466 | return; /* can't have offsets that big */ |
79072805 |
467 | Sv_Grow(sv,len+258); |
463ee0b2 |
468 | table = (unsigned char*)(SvPVX(sv) + len + 1); |
a687059c |
469 | s = table - 2; |
470 | for (i = 0; i < 256; i++) { |
378cc40b |
471 | table[i] = len; |
472 | } |
473 | i = 0; |
463ee0b2 |
474 | while (s >= (unsigned char*)(SvPVX(sv))) |
a687059c |
475 | { |
476 | if (table[*s] == len) { |
477 | #ifndef pdp11 |
478 | if (iflag) |
479 | table[*s] = table[fold[*s]] = i; |
480 | #else |
481 | if (iflag) { |
79072805 |
482 | I32 j; |
a687059c |
483 | j = fold[*s]; |
484 | table[j] = i; |
485 | table[*s] = i; |
486 | } |
487 | #endif /* pdp11 */ |
488 | else |
489 | table[*s] = i; |
490 | } |
378cc40b |
491 | s--,i++; |
492 | } |
79072805 |
493 | sv_upgrade(sv, SVt_PVBM); |
a0d0e21e |
494 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 |
495 | SvVALID_on(sv); |
378cc40b |
496 | |
463ee0b2 |
497 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
a687059c |
498 | if (iflag) { |
79072805 |
499 | register U32 tmp, foldtmp; |
500 | SvCASEFOLD_on(sv); |
a687059c |
501 | for (i = 0; i < len; i++) { |
502 | tmp=freq[s[i]]; |
503 | foldtmp=freq[fold[s[i]]]; |
504 | if (tmp < frequency && foldtmp < frequency) { |
505 | rarest = i; |
506 | /* choose most frequent among the two */ |
507 | frequency = (tmp > foldtmp) ? tmp : foldtmp; |
508 | } |
509 | } |
510 | } |
511 | else { |
512 | for (i = 0; i < len; i++) { |
513 | if (freq[s[i]] < frequency) { |
514 | rarest = i; |
515 | frequency = freq[s[i]]; |
516 | } |
378cc40b |
517 | } |
518 | } |
79072805 |
519 | BmRARE(sv) = s[rarest]; |
520 | BmPREVIOUS(sv) = rarest; |
1050c9ca |
521 | DEBUG_r(fprintf(Perl_debug_log,"rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b |
522 | } |
523 | |
378cc40b |
524 | char * |
79072805 |
525 | fbm_instr(big, bigend, littlestr) |
a687059c |
526 | unsigned char *big; |
527 | register unsigned char *bigend; |
79072805 |
528 | SV *littlestr; |
378cc40b |
529 | { |
a687059c |
530 | register unsigned char *s; |
79072805 |
531 | register I32 tmp; |
532 | register I32 littlelen; |
a687059c |
533 | register unsigned char *little; |
534 | register unsigned char *table; |
535 | register unsigned char *olds; |
536 | register unsigned char *oldlittle; |
378cc40b |
537 | |
79072805 |
538 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
a0d0e21e |
539 | STRLEN len; |
540 | char *l = SvPV(littlestr,len); |
541 | if (!len) |
d48672a2 |
542 | return (char*)big; |
a0d0e21e |
543 | return ninstr((char*)big,(char*)bigend, l, l + len); |
d48672a2 |
544 | } |
378cc40b |
545 | |
79072805 |
546 | littlelen = SvCUR(littlestr); |
547 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ |
0f85fab0 |
548 | if (littlelen > bigend - big) |
549 | return Nullch; |
463ee0b2 |
550 | little = (unsigned char*)SvPVX(littlestr); |
79072805 |
551 | if (SvCASEFOLD(littlestr)) { /* oops, fake it */ |
a687059c |
552 | big = bigend - littlelen; /* just start near end */ |
553 | if (bigend[-1] == '\n' && little[littlelen-1] != '\n') |
554 | big--; |
378cc40b |
555 | } |
556 | else { |
a687059c |
557 | s = bigend - littlelen; |
1aef975c |
558 | if (*s == *little && bcmp((char*)s,(char*)little,littlelen)==0) |
a687059c |
559 | return (char*)s; /* how sweet it is */ |
34de22dd |
560 | else if (bigend[-1] == '\n' && little[littlelen-1] != '\n' |
561 | && s > big) { |
a687059c |
562 | s--; |
1aef975c |
563 | if (*s == *little && bcmp((char*)s,(char*)little,littlelen)==0) |
a687059c |
564 | return (char*)s; |
565 | } |
566 | return Nullch; |
567 | } |
568 | } |
463ee0b2 |
569 | table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1); |
62b28dd9 |
570 | if (--littlelen >= bigend - big) |
571 | return Nullch; |
572 | s = big + littlelen; |
a687059c |
573 | oldlittle = little = table - 2; |
79072805 |
574 | if (SvCASEFOLD(littlestr)) { /* case insensitive? */ |
20188a90 |
575 | if (s < bigend) { |
a687059c |
576 | top1: |
de3bb511 |
577 | /*SUPPRESS 560*/ |
a687059c |
578 | if (tmp = table[*s]) { |
62b28dd9 |
579 | #ifdef POINTERRIGOR |
580 | if (bigend - s > tmp) { |
581 | s += tmp; |
582 | goto top1; |
583 | } |
584 | #else |
585 | if ((s += tmp) < bigend) |
586 | goto top1; |
587 | #endif |
588 | return Nullch; |
a687059c |
589 | } |
590 | else { |
591 | tmp = littlelen; /* less expensive than calling strncmp() */ |
592 | olds = s; |
593 | while (tmp--) { |
594 | if (*--s == *--little || fold[*s] == *little) |
595 | continue; |
596 | s = olds + 1; /* here we pay the price for failure */ |
597 | little = oldlittle; |
598 | if (s < bigend) /* fake up continue to outer loop */ |
599 | goto top1; |
600 | return Nullch; |
601 | } |
a687059c |
602 | return (char *)s; |
a687059c |
603 | } |
604 | } |
605 | } |
606 | else { |
20188a90 |
607 | if (s < bigend) { |
a687059c |
608 | top2: |
de3bb511 |
609 | /*SUPPRESS 560*/ |
a687059c |
610 | if (tmp = table[*s]) { |
62b28dd9 |
611 | #ifdef POINTERRIGOR |
612 | if (bigend - s > tmp) { |
613 | s += tmp; |
614 | goto top2; |
615 | } |
616 | #else |
617 | if ((s += tmp) < bigend) |
618 | goto top2; |
619 | #endif |
620 | return Nullch; |
a687059c |
621 | } |
622 | else { |
623 | tmp = littlelen; /* less expensive than calling strncmp() */ |
624 | olds = s; |
625 | while (tmp--) { |
626 | if (*--s == *--little) |
627 | continue; |
628 | s = olds + 1; /* here we pay the price for failure */ |
629 | little = oldlittle; |
630 | if (s < bigend) /* fake up continue to outer loop */ |
631 | goto top2; |
632 | return Nullch; |
633 | } |
a687059c |
634 | return (char *)s; |
378cc40b |
635 | } |
378cc40b |
636 | } |
637 | } |
638 | return Nullch; |
639 | } |
640 | |
641 | char * |
642 | screaminstr(bigstr, littlestr) |
79072805 |
643 | SV *bigstr; |
644 | SV *littlestr; |
378cc40b |
645 | { |
a687059c |
646 | register unsigned char *s, *x; |
647 | register unsigned char *big; |
79072805 |
648 | register I32 pos; |
649 | register I32 previous; |
650 | register I32 first; |
a687059c |
651 | register unsigned char *little; |
652 | register unsigned char *bigend; |
653 | register unsigned char *littleend; |
378cc40b |
654 | |
79072805 |
655 | if ((pos = screamfirst[BmRARE(littlestr)]) < 0) |
378cc40b |
656 | return Nullch; |
463ee0b2 |
657 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 |
658 | littleend = little + SvCUR(littlestr); |
378cc40b |
659 | first = *little++; |
79072805 |
660 | previous = BmPREVIOUS(littlestr); |
463ee0b2 |
661 | big = (unsigned char *)(SvPVX(bigstr)); |
79072805 |
662 | bigend = big + SvCUR(bigstr); |
378cc40b |
663 | while (pos < previous) { |
664 | if (!(pos += screamnext[pos])) |
665 | return Nullch; |
666 | } |
de3bb511 |
667 | #ifdef POINTERRIGOR |
79072805 |
668 | if (SvCASEFOLD(littlestr)) { /* case insignificant? */ |
a687059c |
669 | do { |
988174c1 |
670 | if (big[pos-previous] != first && big[pos-previous] != fold[first]) |
671 | continue; |
de3bb511 |
672 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { |
673 | if (x >= bigend) |
674 | return Nullch; |
675 | if (*s++ != *x++ && fold[*(s-1)] != *(x-1)) { |
676 | s--; |
677 | break; |
678 | } |
679 | } |
680 | if (s == littleend) |
de3bb511 |
681 | return (char *)(big+pos-previous); |
de3bb511 |
682 | } while ( |
de3bb511 |
683 | pos += screamnext[pos] /* does this goof up anywhere? */ |
de3bb511 |
684 | ); |
685 | } |
686 | else { |
687 | do { |
988174c1 |
688 | if (big[pos-previous] != first) |
689 | continue; |
de3bb511 |
690 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { |
691 | if (x >= bigend) |
692 | return Nullch; |
693 | if (*s++ != *x++) { |
694 | s--; |
695 | break; |
696 | } |
697 | } |
698 | if (s == littleend) |
de3bb511 |
699 | return (char *)(big+pos-previous); |
79072805 |
700 | } while ( pos += screamnext[pos] ); |
de3bb511 |
701 | } |
702 | #else /* !POINTERRIGOR */ |
703 | big -= previous; |
79072805 |
704 | if (SvCASEFOLD(littlestr)) { /* case insignificant? */ |
de3bb511 |
705 | do { |
988174c1 |
706 | if (big[pos] != first && big[pos] != fold[first]) |
707 | continue; |
a687059c |
708 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { |
709 | if (x >= bigend) |
710 | return Nullch; |
711 | if (*s++ != *x++ && fold[*(s-1)] != *(x-1)) { |
712 | s--; |
713 | break; |
714 | } |
715 | } |
716 | if (s == littleend) |
a687059c |
717 | return (char *)(big+pos); |
a687059c |
718 | } while ( |
a687059c |
719 | pos += screamnext[pos] /* does this goof up anywhere? */ |
a687059c |
720 | ); |
721 | } |
722 | else { |
723 | do { |
988174c1 |
724 | if (big[pos] != first) |
725 | continue; |
a687059c |
726 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { |
727 | if (x >= bigend) |
728 | return Nullch; |
729 | if (*s++ != *x++) { |
730 | s--; |
731 | break; |
732 | } |
378cc40b |
733 | } |
a687059c |
734 | if (s == littleend) |
a687059c |
735 | return (char *)(big+pos); |
a687059c |
736 | } while ( |
a687059c |
737 | pos += screamnext[pos] |
a687059c |
738 | ); |
739 | } |
de3bb511 |
740 | #endif /* POINTERRIGOR */ |
8d063cd8 |
741 | return Nullch; |
742 | } |
743 | |
79072805 |
744 | I32 |
745 | ibcmp(a,b,len) |
a0d0e21e |
746 | register U8 *a; |
747 | register U8 *b; |
79072805 |
748 | register I32 len; |
749 | { |
750 | while (len--) { |
751 | if (*a == *b) { |
752 | a++,b++; |
753 | continue; |
754 | } |
755 | if (fold[*a++] == *b++) |
756 | continue; |
757 | return 1; |
758 | } |
759 | return 0; |
760 | } |
761 | |
8d063cd8 |
762 | /* copy a string to a safe spot */ |
763 | |
764 | char * |
a0d0e21e |
765 | savepv(sv) |
79072805 |
766 | char *sv; |
8d063cd8 |
767 | { |
a687059c |
768 | register char *newaddr; |
8d063cd8 |
769 | |
79072805 |
770 | New(902,newaddr,strlen(sv)+1,char); |
771 | (void)strcpy(newaddr,sv); |
8d063cd8 |
772 | return newaddr; |
773 | } |
774 | |
a687059c |
775 | /* same thing but with a known length */ |
776 | |
777 | char * |
a0d0e21e |
778 | savepvn(sv, len) |
79072805 |
779 | char *sv; |
780 | register I32 len; |
a687059c |
781 | { |
782 | register char *newaddr; |
783 | |
784 | New(903,newaddr,len+1,char); |
79072805 |
785 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c |
786 | newaddr[len] = '\0'; /* is now */ |
787 | return newaddr; |
788 | } |
789 | |
a0d0e21e |
790 | #if !defined(I_STDARG) && !defined(I_VARARGS) |
8d063cd8 |
791 | |
8990e307 |
792 | /* |
793 | * Fallback on the old hackers way of doing varargs |
794 | */ |
8d063cd8 |
795 | |
378cc40b |
796 | /*VARARGS1*/ |
7c0587c8 |
797 | char * |
378cc40b |
798 | mess(pat,a1,a2,a3,a4) |
799 | char *pat; |
a687059c |
800 | long a1, a2, a3, a4; |
378cc40b |
801 | { |
802 | char *s; |
f0c5b223 |
803 | char *s_start; |
79072805 |
804 | I32 usermess = strEQ(pat,"%s"); |
805 | SV *tmpstr; |
378cc40b |
806 | |
f0c5b223 |
807 | s = s_start = buf; |
de3bb511 |
808 | if (usermess) { |
8990e307 |
809 | tmpstr = sv_newmortal(); |
79072805 |
810 | sv_setpv(tmpstr, (char*)a1); |
463ee0b2 |
811 | *s++ = SvPVX(tmpstr)[SvCUR(tmpstr)-1]; |
de3bb511 |
812 | } |
813 | else { |
814 | (void)sprintf(s,pat,a1,a2,a3,a4); |
815 | s += strlen(s); |
816 | } |
817 | |
378cc40b |
818 | if (s[-1] != '\n') { |
2304df62 |
819 | if (dirty) |
820 | strcpy(s, " during global destruction.\n"); |
821 | else { |
822 | if (curcop->cop_line) { |
823 | (void)sprintf(s," at %s line %ld", |
824 | SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line); |
825 | s += strlen(s); |
826 | } |
a0d0e21e |
827 | if (GvIO(last_in_gv) && |
828 | IoLINES(GvIOp(last_in_gv)) ) { |
2304df62 |
829 | (void)sprintf(s,", <%s> %s %ld", |
830 | last_in_gv == argvgv ? "" : GvENAME(last_in_gv), |
831 | strEQ(rs,"\n") ? "line" : "chunk", |
a0d0e21e |
832 | (long)IoLINES(GvIOp(last_in_gv))); |
2304df62 |
833 | s += strlen(s); |
834 | } |
835 | (void)strcpy(s,".\n"); |
f0c5b223 |
836 | s += 2; |
378cc40b |
837 | } |
de3bb511 |
838 | if (usermess) |
79072805 |
839 | sv_catpv(tmpstr,buf+1); |
378cc40b |
840 | } |
f0c5b223 |
841 | |
842 | if (s - s_start >= sizeof(buf)) { /* Ooops! */ |
843 | if (usermess) |
844 | fputs(SvPVX(tmpstr), stderr); |
845 | else |
846 | fputs(buf, stderr); |
847 | fputs("panic: message overflow - memory corrupted!\n",stderr); |
848 | my_exit(1); |
849 | } |
de3bb511 |
850 | if (usermess) |
463ee0b2 |
851 | return SvPVX(tmpstr); |
de3bb511 |
852 | else |
853 | return buf; |
378cc40b |
854 | } |
855 | |
8d063cd8 |
856 | /*VARARGS1*/ |
463ee0b2 |
857 | void croak(pat,a1,a2,a3,a4) |
8d063cd8 |
858 | char *pat; |
a687059c |
859 | long a1, a2, a3, a4; |
8d063cd8 |
860 | { |
9f68db38 |
861 | char *tmps; |
de3bb511 |
862 | char *message; |
748a9306 |
863 | HV *stash; |
864 | GV *gv; |
865 | CV *cv; |
8d063cd8 |
866 | |
de3bb511 |
867 | message = mess(pat,a1,a2,a3,a4); |
748a9306 |
868 | if (diehook && (cv = sv_2cv(diehook, &stash, &gv, 0)) && !CvDEPTH(cv)) { |
869 | dSP; |
870 | |
871 | PUSHMARK(sp); |
872 | EXTEND(sp, 1); |
873 | PUSHs(sv_2mortal(newSVpv(message,0))); |
874 | PUTBACK; |
875 | perl_call_sv((SV*)cv, G_DISCARD); |
876 | } |
a0d0e21e |
877 | if (in_eval) { |
878 | restartop = die_where(message); |
a5f75d66 |
879 | Siglongjmp(top_env, 3); |
a0d0e21e |
880 | } |
de3bb511 |
881 | fputs(message,stderr); |
a5f75d66 |
882 | (void)Fflush(stderr); |
38cd9116 |
883 | if (e_tmpname) { |
884 | if (e_fp) { |
885 | fclose(e_fp); |
886 | e_fp = Nullfp; |
887 | } |
a687059c |
888 | (void)UNLINK(e_tmpname); |
38cd9116 |
889 | Safefree(e_tmpname); |
890 | e_tmpname = Nullch; |
f0c5b223 |
891 | } |
748a9306 |
892 | statusvalue = SHIFTSTATUS(statusvalue); |
893 | #ifdef VMS |
894 | my_exit((U32)vaxc$errno?vaxc$errno:errno?errno:statusvalue?statusvalue:SS$_ABORT); |
895 | #else |
896 | my_exit((U32)((errno&255)?errno:((statusvalue&255)?statusvalue:255))); |
897 | #endif |
378cc40b |
898 | } |
899 | |
900 | /*VARARGS1*/ |
7c0587c8 |
901 | void warn(pat,a1,a2,a3,a4) |
378cc40b |
902 | char *pat; |
a687059c |
903 | long a1, a2, a3, a4; |
378cc40b |
904 | { |
de3bb511 |
905 | char *message; |
748a9306 |
906 | SV *sv; |
907 | HV *stash; |
908 | GV *gv; |
909 | CV *cv; |
de3bb511 |
910 | |
911 | message = mess(pat,a1,a2,a3,a4); |
748a9306 |
912 | if (warnhook && (cv = sv_2cv(warnhook, &stash, &gv, 0)) && !CvDEPTH(cv)) { |
913 | dSP; |
914 | |
915 | PUSHMARK(sp); |
916 | EXTEND(sp, 1); |
917 | PUSHs(sv_2mortal(newSVpv(message,0))); |
918 | PUTBACK; |
919 | perl_call_sv((SV*)cv, G_DISCARD); |
920 | } |
921 | else { |
922 | fputs(message,stderr); |
a687059c |
923 | #ifdef LEAKTEST |
748a9306 |
924 | DEBUG_L(xstat()); |
a687059c |
925 | #endif |
a5f75d66 |
926 | (void)Fflush(stderr); |
748a9306 |
927 | } |
8d063cd8 |
928 | } |
8990e307 |
929 | |
a0d0e21e |
930 | #else /* !defined(I_STDARG) && !defined(I_VARARGS) */ |
8990e307 |
931 | |
a0d0e21e |
932 | #ifdef I_STDARG |
8990e307 |
933 | char * |
2304df62 |
934 | mess(char *pat, va_list *args) |
a687059c |
935 | #else |
936 | /*VARARGS0*/ |
de3bb511 |
937 | char * |
8990e307 |
938 | mess(pat, args) |
a687059c |
939 | char *pat; |
2304df62 |
940 | va_list *args; |
8990e307 |
941 | #endif |
942 | { |
a687059c |
943 | char *s; |
f0c5b223 |
944 | char *s_start; |
79072805 |
945 | SV *tmpstr; |
946 | I32 usermess; |
d48672a2 |
947 | #ifndef HAS_VPRINTF |
85e6fe83 |
948 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
949 | char *vsprintf(); |
950 | #else |
79072805 |
951 | I32 vsprintf(); |
a687059c |
952 | #endif |
d48672a2 |
953 | #endif |
a687059c |
954 | |
f0c5b223 |
955 | s = s_start = buf; |
de3bb511 |
956 | usermess = strEQ(pat, "%s"); |
957 | if (usermess) { |
8990e307 |
958 | tmpstr = sv_newmortal(); |
2304df62 |
959 | sv_setpv(tmpstr, va_arg(*args, char *)); |
463ee0b2 |
960 | *s++ = SvPVX(tmpstr)[SvCUR(tmpstr)-1]; |
de3bb511 |
961 | } |
962 | else { |
2304df62 |
963 | (void) vsprintf(s,pat,*args); |
de3bb511 |
964 | s += strlen(s); |
965 | } |
2304df62 |
966 | va_end(*args); |
a687059c |
967 | |
a687059c |
968 | if (s[-1] != '\n') { |
2304df62 |
969 | if (dirty) |
970 | strcpy(s, " during global destruction.\n"); |
971 | else { |
972 | if (curcop->cop_line) { |
973 | (void)sprintf(s," at %s line %ld", |
974 | SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line); |
975 | s += strlen(s); |
976 | } |
c07a80fd |
977 | if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) { |
978 | bool line_mode = (RsSIMPLE(rs) && |
979 | SvLEN(rs) == 1 && *SvPVX(rs) == '\n'); |
2304df62 |
980 | (void)sprintf(s,", <%s> %s %ld", |
981 | last_in_gv == argvgv ? "" : GvNAME(last_in_gv), |
c07a80fd |
982 | line_mode ? "line" : "chunk", |
a0d0e21e |
983 | (long)IoLINES(GvIOp(last_in_gv))); |
2304df62 |
984 | s += strlen(s); |
985 | } |
986 | (void)strcpy(s,".\n"); |
f0c5b223 |
987 | s += 2; |
a687059c |
988 | } |
de3bb511 |
989 | if (usermess) |
79072805 |
990 | sv_catpv(tmpstr,buf+1); |
a687059c |
991 | } |
de3bb511 |
992 | |
f0c5b223 |
993 | if (s - s_start >= sizeof(buf)) { /* Ooops! */ |
994 | if (usermess) |
995 | fputs(SvPVX(tmpstr), stderr); |
996 | else |
997 | fputs(buf, stderr); |
998 | fputs("panic: message overflow - memory corrupted!\n",stderr); |
999 | my_exit(1); |
1000 | } |
de3bb511 |
1001 | if (usermess) |
463ee0b2 |
1002 | return SvPVX(tmpstr); |
de3bb511 |
1003 | else |
1004 | return buf; |
a687059c |
1005 | } |
1006 | |
ecfc5424 |
1007 | #ifdef I_STDARG |
79072805 |
1008 | void |
8990e307 |
1009 | croak(char* pat, ...) |
463ee0b2 |
1010 | #else |
8990e307 |
1011 | /*VARARGS0*/ |
1012 | void |
1013 | croak(pat, va_alist) |
1014 | char *pat; |
1015 | va_dcl |
463ee0b2 |
1016 | #endif |
a687059c |
1017 | { |
1018 | va_list args; |
de3bb511 |
1019 | char *message; |
748a9306 |
1020 | HV *stash; |
1021 | GV *gv; |
1022 | CV *cv; |
a687059c |
1023 | |
a0d0e21e |
1024 | #ifdef I_STDARG |
8990e307 |
1025 | va_start(args, pat); |
1026 | #else |
a687059c |
1027 | va_start(args); |
8990e307 |
1028 | #endif |
2304df62 |
1029 | message = mess(pat, &args); |
a687059c |
1030 | va_end(args); |
748a9306 |
1031 | if (diehook && (cv = sv_2cv(diehook, &stash, &gv, 0)) && !CvDEPTH(cv)) { |
1032 | dSP; |
1033 | |
1034 | PUSHMARK(sp); |
1035 | EXTEND(sp, 1); |
1036 | PUSHs(sv_2mortal(newSVpv(message,0))); |
1037 | PUTBACK; |
1038 | perl_call_sv((SV*)cv, G_DISCARD); |
1039 | } |
a0d0e21e |
1040 | if (in_eval) { |
1041 | restartop = die_where(message); |
a5f75d66 |
1042 | Siglongjmp(top_env, 3); |
a0d0e21e |
1043 | } |
de3bb511 |
1044 | fputs(message,stderr); |
a5f75d66 |
1045 | (void)Fflush(stderr); |
38cd9116 |
1046 | if (e_tmpname) { |
1047 | if (e_fp) { |
1048 | fclose(e_fp); |
1049 | e_fp = Nullfp; |
1050 | } |
a687059c |
1051 | (void)UNLINK(e_tmpname); |
38cd9116 |
1052 | Safefree(e_tmpname); |
1053 | e_tmpname = Nullch; |
f0c5b223 |
1054 | } |
748a9306 |
1055 | statusvalue = SHIFTSTATUS(statusvalue); |
1056 | #ifdef VMS |
1057 | my_exit((U32)(vaxc$errno?vaxc$errno:(statusvalue?statusvalue:44))); |
1058 | #else |
1059 | my_exit((U32)((errno&255)?errno:((statusvalue&255)?statusvalue:255))); |
1060 | #endif |
a687059c |
1061 | } |
1062 | |
8990e307 |
1063 | void |
ecfc5424 |
1064 | #ifdef I_STDARG |
8990e307 |
1065 | warn(char* pat,...) |
463ee0b2 |
1066 | #else |
8990e307 |
1067 | /*VARARGS0*/ |
1068 | warn(pat,va_alist) |
1069 | char *pat; |
1070 | va_dcl |
463ee0b2 |
1071 | #endif |
a687059c |
1072 | { |
1073 | va_list args; |
de3bb511 |
1074 | char *message; |
748a9306 |
1075 | HV *stash; |
1076 | GV *gv; |
1077 | CV *cv; |
a687059c |
1078 | |
a0d0e21e |
1079 | #ifdef I_STDARG |
8990e307 |
1080 | va_start(args, pat); |
1081 | #else |
a687059c |
1082 | va_start(args); |
8990e307 |
1083 | #endif |
2304df62 |
1084 | message = mess(pat, &args); |
a687059c |
1085 | va_end(args); |
1086 | |
748a9306 |
1087 | if (warnhook && (cv = sv_2cv(warnhook, &stash, &gv, 0)) && !CvDEPTH(cv)) { |
1088 | dSP; |
1089 | |
1090 | PUSHMARK(sp); |
1091 | EXTEND(sp, 1); |
1092 | PUSHs(sv_2mortal(newSVpv(message,0))); |
1093 | PUTBACK; |
1094 | perl_call_sv((SV*)cv, G_DISCARD); |
1095 | } |
1096 | else { |
1097 | fputs(message,stderr); |
a687059c |
1098 | #ifdef LEAKTEST |
748a9306 |
1099 | DEBUG_L(xstat()); |
a687059c |
1100 | #endif |
a5f75d66 |
1101 | (void)Fflush(stderr); |
748a9306 |
1102 | } |
a687059c |
1103 | } |
a0d0e21e |
1104 | #endif /* !defined(I_STDARG) && !defined(I_VARARGS) */ |
8d063cd8 |
1105 | |
a0d0e21e |
1106 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
8d063cd8 |
1107 | void |
7c0587c8 |
1108 | my_setenv(nam,val) |
8d063cd8 |
1109 | char *nam, *val; |
1110 | { |
79072805 |
1111 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 |
1112 | |
fe14fcc3 |
1113 | if (environ == origenviron) { /* need we copy environment? */ |
79072805 |
1114 | I32 j; |
1115 | I32 max; |
fe14fcc3 |
1116 | char **tmpenv; |
1117 | |
de3bb511 |
1118 | /*SUPPRESS 530*/ |
fe14fcc3 |
1119 | for (max = i; environ[max]; max++) ; |
1120 | New(901,tmpenv, max+2, char*); |
1121 | for (j=0; j<max; j++) /* copy environment */ |
a0d0e21e |
1122 | tmpenv[j] = savepv(environ[j]); |
fe14fcc3 |
1123 | tmpenv[max] = Nullch; |
1124 | environ = tmpenv; /* tell exec where it is now */ |
1125 | } |
a687059c |
1126 | if (!val) { |
1127 | while (environ[i]) { |
1128 | environ[i] = environ[i+1]; |
1129 | i++; |
1130 | } |
1131 | return; |
1132 | } |
8d063cd8 |
1133 | if (!environ[i]) { /* does not exist yet */ |
fe14fcc3 |
1134 | Renew(environ, i+2, char*); /* just expand it a bit */ |
8d063cd8 |
1135 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1136 | } |
fe14fcc3 |
1137 | else |
1138 | Safefree(environ[i]); |
a687059c |
1139 | New(904, environ[i], strlen(nam) + strlen(val) + 2, char); |
62b28dd9 |
1140 | #ifndef MSDOS |
a687059c |
1141 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 |
1142 | #else |
1143 | /* MS-DOS requires environment variable names to be in uppercase */ |
fe14fcc3 |
1144 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1145 | * some utilities and applications may break because they only look |
1146 | * for upper case strings. (Fixed strupr() bug here.)] |
1147 | */ |
1148 | strcpy(environ[i],nam); strupr(environ[i]); |
62b28dd9 |
1149 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1150 | #endif /* MSDOS */ |
8d063cd8 |
1151 | } |
1152 | |
79072805 |
1153 | I32 |
1154 | setenv_getix(nam) |
8d063cd8 |
1155 | char *nam; |
1156 | { |
79072805 |
1157 | register I32 i, len = strlen(nam); |
8d063cd8 |
1158 | |
1159 | for (i = 0; environ[i]; i++) { |
1160 | if (strnEQ(environ[i],nam,len) && environ[i][len] == '=') |
1161 | break; /* strnEQ must come first to avoid */ |
1162 | } /* potential SEGV's */ |
1163 | return i; |
1164 | } |
a0d0e21e |
1165 | #endif /* !VMS */ |
378cc40b |
1166 | |
16d20bd9 |
1167 | #ifdef UNLINK_ALL_VERSIONS |
79072805 |
1168 | I32 |
378cc40b |
1169 | unlnk(f) /* unlink all versions of a file */ |
1170 | char *f; |
1171 | { |
79072805 |
1172 | I32 i; |
378cc40b |
1173 | |
1174 | for (i = 0; unlink(f) >= 0; i++) ; |
1175 | return i ? 0 : -1; |
1176 | } |
1177 | #endif |
1178 | |
85e6fe83 |
1179 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b |
1180 | char * |
7c0587c8 |
1181 | my_bcopy(from,to,len) |
378cc40b |
1182 | register char *from; |
1183 | register char *to; |
79072805 |
1184 | register I32 len; |
378cc40b |
1185 | { |
1186 | char *retval = to; |
1187 | |
7c0587c8 |
1188 | if (from - to >= 0) { |
1189 | while (len--) |
1190 | *to++ = *from++; |
1191 | } |
1192 | else { |
1193 | to += len; |
1194 | from += len; |
1195 | while (len--) |
faf8582f |
1196 | *(--to) = *(--from); |
7c0587c8 |
1197 | } |
378cc40b |
1198 | return retval; |
1199 | } |
ffed7fef |
1200 | #endif |
378cc40b |
1201 | |
7c0587c8 |
1202 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b |
1203 | char * |
7c0587c8 |
1204 | my_bzero(loc,len) |
378cc40b |
1205 | register char *loc; |
79072805 |
1206 | register I32 len; |
378cc40b |
1207 | { |
1208 | char *retval = loc; |
1209 | |
1210 | while (len--) |
1211 | *loc++ = 0; |
1212 | return retval; |
1213 | } |
1214 | #endif |
7c0587c8 |
1215 | |
1216 | #ifndef HAS_MEMCMP |
79072805 |
1217 | I32 |
7c0587c8 |
1218 | my_memcmp(s1,s2,len) |
1219 | register unsigned char *s1; |
1220 | register unsigned char *s2; |
79072805 |
1221 | register I32 len; |
7c0587c8 |
1222 | { |
79072805 |
1223 | register I32 tmp; |
7c0587c8 |
1224 | |
1225 | while (len--) { |
1226 | if (tmp = *s1++ - *s2++) |
1227 | return tmp; |
1228 | } |
1229 | return 0; |
1230 | } |
1231 | #endif /* HAS_MEMCMP */ |
a687059c |
1232 | |
4633a7c4 |
1233 | #if defined(I_STDARG) || defined(I_VARARGS) |
fe14fcc3 |
1234 | #ifndef HAS_VPRINTF |
a687059c |
1235 | |
85e6fe83 |
1236 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1237 | char * |
1238 | #else |
1239 | int |
1240 | #endif |
1241 | vsprintf(dest, pat, args) |
1242 | char *dest, *pat, *args; |
1243 | { |
1244 | FILE fakebuf; |
1245 | |
1246 | fakebuf._ptr = dest; |
1247 | fakebuf._cnt = 32767; |
35c8bce7 |
1248 | #ifndef _IOSTRG |
1249 | #define _IOSTRG 0 |
1250 | #endif |
a687059c |
1251 | fakebuf._flag = _IOWRT|_IOSTRG; |
1252 | _doprnt(pat, args, &fakebuf); /* what a kludge */ |
1253 | (void)putc('\0', &fakebuf); |
85e6fe83 |
1254 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1255 | return(dest); |
1256 | #else |
1257 | return 0; /* perl doesn't use return value */ |
1258 | #endif |
1259 | } |
1260 | |
a687059c |
1261 | int |
1262 | vfprintf(fd, pat, args) |
1263 | FILE *fd; |
1264 | char *pat, *args; |
1265 | { |
1266 | _doprnt(pat, args, fd); |
1267 | return 0; /* wrong, but perl doesn't use the return value */ |
1268 | } |
fe14fcc3 |
1269 | #endif /* HAS_VPRINTF */ |
4633a7c4 |
1270 | #endif /* I_VARARGS || I_STDARGS */ |
a687059c |
1271 | |
1272 | #ifdef MYSWAP |
ffed7fef |
1273 | #if BYTEORDER != 0x4321 |
a687059c |
1274 | short |
748a9306 |
1275 | #ifndef CAN_PROTOTYPE |
a687059c |
1276 | my_swap(s) |
1277 | short s; |
748a9306 |
1278 | #else |
1279 | my_swap(short s) |
1280 | #endif |
a687059c |
1281 | { |
1282 | #if (BYTEORDER & 1) == 0 |
1283 | short result; |
1284 | |
1285 | result = ((s & 255) << 8) + ((s >> 8) & 255); |
1286 | return result; |
1287 | #else |
1288 | return s; |
1289 | #endif |
1290 | } |
1291 | |
1292 | long |
748a9306 |
1293 | #ifndef CAN_PROTOTYPE |
1294 | my_htonl(l) |
a687059c |
1295 | register long l; |
748a9306 |
1296 | #else |
1297 | my_htonl(long l) |
1298 | #endif |
a687059c |
1299 | { |
1300 | union { |
1301 | long result; |
ffed7fef |
1302 | char c[sizeof(long)]; |
a687059c |
1303 | } u; |
1304 | |
ffed7fef |
1305 | #if BYTEORDER == 0x1234 |
a687059c |
1306 | u.c[0] = (l >> 24) & 255; |
1307 | u.c[1] = (l >> 16) & 255; |
1308 | u.c[2] = (l >> 8) & 255; |
1309 | u.c[3] = l & 255; |
1310 | return u.result; |
1311 | #else |
ffed7fef |
1312 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 |
1313 | croak("Unknown BYTEORDER\n"); |
a687059c |
1314 | #else |
79072805 |
1315 | register I32 o; |
1316 | register I32 s; |
a687059c |
1317 | |
ffed7fef |
1318 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1319 | u.c[o & 0xf] = (l >> s) & 255; |
a687059c |
1320 | } |
1321 | return u.result; |
1322 | #endif |
1323 | #endif |
1324 | } |
1325 | |
1326 | long |
748a9306 |
1327 | #ifndef CAN_PROTOTYPE |
1328 | my_ntohl(l) |
a687059c |
1329 | register long l; |
748a9306 |
1330 | #else |
1331 | my_ntohl(long l) |
1332 | #endif |
a687059c |
1333 | { |
1334 | union { |
1335 | long l; |
ffed7fef |
1336 | char c[sizeof(long)]; |
a687059c |
1337 | } u; |
1338 | |
ffed7fef |
1339 | #if BYTEORDER == 0x1234 |
a687059c |
1340 | u.c[0] = (l >> 24) & 255; |
1341 | u.c[1] = (l >> 16) & 255; |
1342 | u.c[2] = (l >> 8) & 255; |
1343 | u.c[3] = l & 255; |
1344 | return u.l; |
1345 | #else |
ffed7fef |
1346 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 |
1347 | croak("Unknown BYTEORDER\n"); |
a687059c |
1348 | #else |
79072805 |
1349 | register I32 o; |
1350 | register I32 s; |
a687059c |
1351 | |
1352 | u.l = l; |
1353 | l = 0; |
ffed7fef |
1354 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1355 | l |= (u.c[o & 0xf] & 255) << s; |
a687059c |
1356 | } |
1357 | return l; |
1358 | #endif |
1359 | #endif |
1360 | } |
1361 | |
ffed7fef |
1362 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 |
1363 | #endif /* MYSWAP */ |
1364 | |
1365 | /* |
1366 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. |
1367 | * If these functions are defined, |
1368 | * the BYTEORDER is neither 0x1234 nor 0x4321. |
1369 | * However, this is not assumed. |
1370 | * -DWS |
1371 | */ |
1372 | |
1373 | #define HTOV(name,type) \ |
1374 | type \ |
1375 | name (n) \ |
1376 | register type n; \ |
1377 | { \ |
1378 | union { \ |
1379 | type value; \ |
1380 | char c[sizeof(type)]; \ |
1381 | } u; \ |
79072805 |
1382 | register I32 i; \ |
1383 | register I32 s; \ |
988174c1 |
1384 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1385 | u.c[i] = (n >> s) & 0xFF; \ |
1386 | } \ |
1387 | return u.value; \ |
1388 | } |
1389 | |
1390 | #define VTOH(name,type) \ |
1391 | type \ |
1392 | name (n) \ |
1393 | register type n; \ |
1394 | { \ |
1395 | union { \ |
1396 | type value; \ |
1397 | char c[sizeof(type)]; \ |
1398 | } u; \ |
79072805 |
1399 | register I32 i; \ |
1400 | register I32 s; \ |
988174c1 |
1401 | u.value = n; \ |
1402 | n = 0; \ |
1403 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1404 | n += (u.c[i] & 0xFF) << s; \ |
1405 | } \ |
1406 | return n; \ |
1407 | } |
1408 | |
1409 | #if defined(HAS_HTOVS) && !defined(htovs) |
1410 | HTOV(htovs,short) |
1411 | #endif |
1412 | #if defined(HAS_HTOVL) && !defined(htovl) |
1413 | HTOV(htovl,long) |
1414 | #endif |
1415 | #if defined(HAS_VTOHS) && !defined(vtohs) |
1416 | VTOH(vtohs,short) |
1417 | #endif |
1418 | #if defined(HAS_VTOHL) && !defined(vtohl) |
1419 | VTOH(vtohl,long) |
1420 | #endif |
a687059c |
1421 | |
1050c9ca |
1422 | #if (!defined(DOSISH) || defined(HAS_FORK)) && !defined(VMS) /* VMS' my_popen() is in |
f0c5b223 |
1423 | VMS.c, same with OS/2. */ |
a687059c |
1424 | FILE * |
79072805 |
1425 | my_popen(cmd,mode) |
a687059c |
1426 | char *cmd; |
1427 | char *mode; |
1428 | { |
1429 | int p[2]; |
79072805 |
1430 | register I32 this, that; |
1431 | register I32 pid; |
1432 | SV *sv; |
1433 | I32 doexec = strNE(cmd,"-"); |
a687059c |
1434 | |
1435 | if (pipe(p) < 0) |
1436 | return Nullfp; |
1437 | this = (*mode == 'w'); |
1438 | that = !this; |
463ee0b2 |
1439 | if (tainting) { |
1440 | if (doexec) { |
1441 | taint_env(); |
1442 | taint_proper("Insecure %s%s", "EXEC"); |
1443 | } |
d48672a2 |
1444 | } |
a687059c |
1445 | while ((pid = (doexec?vfork():fork())) < 0) { |
1446 | if (errno != EAGAIN) { |
1447 | close(p[this]); |
1448 | if (!doexec) |
463ee0b2 |
1449 | croak("Can't fork"); |
a687059c |
1450 | return Nullfp; |
1451 | } |
1452 | sleep(5); |
1453 | } |
1454 | if (pid == 0) { |
79072805 |
1455 | GV* tmpgv; |
1456 | |
a687059c |
1457 | #define THIS that |
1458 | #define THAT this |
1459 | close(p[THAT]); |
1460 | if (p[THIS] != (*mode == 'r')) { |
1461 | dup2(p[THIS], *mode == 'r'); |
1462 | close(p[THIS]); |
1463 | } |
1464 | if (doexec) { |
a0d0e21e |
1465 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 |
1466 | int fd; |
1467 | |
1468 | #ifndef NOFILE |
1469 | #define NOFILE 20 |
1470 | #endif |
d48672a2 |
1471 | for (fd = maxsysfd + 1; fd < NOFILE; fd++) |
ae986130 |
1472 | close(fd); |
1473 | #endif |
a687059c |
1474 | do_exec(cmd); /* may or may not use the shell */ |
1475 | _exit(1); |
1476 | } |
de3bb511 |
1477 | /*SUPPRESS 560*/ |
85e6fe83 |
1478 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 |
1479 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
9f68db38 |
1480 | forkprocess = 0; |
463ee0b2 |
1481 | hv_clear(pidstatus); /* we have no children */ |
a687059c |
1482 | return Nullfp; |
1483 | #undef THIS |
1484 | #undef THAT |
1485 | } |
62b28dd9 |
1486 | do_execfree(); /* free any memory malloced by child on vfork */ |
a687059c |
1487 | close(p[that]); |
62b28dd9 |
1488 | if (p[that] < p[this]) { |
1489 | dup2(p[this], p[that]); |
1490 | close(p[this]); |
1491 | p[this] = p[that]; |
1492 | } |
79072805 |
1493 | sv = *av_fetch(fdpid,p[this],TRUE); |
a0d0e21e |
1494 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
1495 | SvIVX(sv) = pid; |
a687059c |
1496 | forkprocess = pid; |
1497 | return fdopen(p[this], mode); |
1498 | } |
7c0587c8 |
1499 | #else |
f0c5b223 |
1500 | #if defined(atarist) |
7c0587c8 |
1501 | FILE *popen(); |
1502 | FILE * |
79072805 |
1503 | my_popen(cmd,mode) |
7c0587c8 |
1504 | char *cmd; |
1505 | char *mode; |
1506 | { |
1507 | return popen(cmd, mode); |
1508 | } |
1509 | #endif |
1510 | |
1511 | #endif /* !DOSISH */ |
a687059c |
1512 | |
748a9306 |
1513 | #ifdef DUMP_FDS |
79072805 |
1514 | dump_fds(s) |
ae986130 |
1515 | char *s; |
1516 | { |
1517 | int fd; |
1518 | struct stat tmpstatbuf; |
1519 | |
1520 | fprintf(stderr,"%s", s); |
1521 | for (fd = 0; fd < 32; fd++) { |
a0d0e21e |
1522 | if (Fstat(fd,&tmpstatbuf) >= 0) |
ae986130 |
1523 | fprintf(stderr," %d",fd); |
1524 | } |
1525 | fprintf(stderr,"\n"); |
1526 | } |
1527 | #endif |
1528 | |
fe14fcc3 |
1529 | #ifndef HAS_DUP2 |
fec02dd3 |
1530 | int |
a687059c |
1531 | dup2(oldfd,newfd) |
1532 | int oldfd; |
1533 | int newfd; |
1534 | { |
a0d0e21e |
1535 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 |
1536 | if (oldfd == newfd) |
1537 | return oldfd; |
62b28dd9 |
1538 | close(newfd); |
fec02dd3 |
1539 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 |
1540 | #else |
d48672a2 |
1541 | int fdtmp[256]; |
79072805 |
1542 | I32 fdx = 0; |
ae986130 |
1543 | int fd; |
1544 | |
fe14fcc3 |
1545 | if (oldfd == newfd) |
fec02dd3 |
1546 | return oldfd; |
a687059c |
1547 | close(newfd); |
fec02dd3 |
1548 | while ((fd = dup(oldfd)) != newfd && fd >= 0) /* good enough for low fd's */ |
ae986130 |
1549 | fdtmp[fdx++] = fd; |
1550 | while (fdx > 0) |
1551 | close(fdtmp[--fdx]); |
fec02dd3 |
1552 | return fd; |
62b28dd9 |
1553 | #endif |
a687059c |
1554 | } |
1555 | #endif |
1556 | |
1050c9ca |
1557 | #if (!defined(DOSISH) || defined(HAS_FORK)) && !defined(VMS) /* VMS' my_popen() is in VMS.c */ |
79072805 |
1558 | I32 |
1559 | my_pclose(ptr) |
a687059c |
1560 | FILE *ptr; |
1561 | { |
ecfc5424 |
1562 | Signal_t (*hstat)(), (*istat)(), (*qstat)(); |
a687059c |
1563 | int status; |
a0d0e21e |
1564 | SV **svp; |
20188a90 |
1565 | int pid; |
a687059c |
1566 | |
a0d0e21e |
1567 | svp = av_fetch(fdpid,fileno(ptr),TRUE); |
748a9306 |
1568 | pid = (int)SvIVX(*svp); |
a0d0e21e |
1569 | SvREFCNT_dec(*svp); |
1570 | *svp = &sv_undef; |
a687059c |
1571 | fclose(ptr); |
7c0587c8 |
1572 | #ifdef UTS |
1573 | if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ |
1574 | #endif |
a687059c |
1575 | hstat = signal(SIGHUP, SIG_IGN); |
1576 | istat = signal(SIGINT, SIG_IGN); |
1577 | qstat = signal(SIGQUIT, SIG_IGN); |
748a9306 |
1578 | do { |
1579 | pid = wait4pid(pid, &status, 0); |
1580 | } while (pid == -1 && errno == EINTR); |
20188a90 |
1581 | signal(SIGHUP, hstat); |
1582 | signal(SIGINT, istat); |
1583 | signal(SIGQUIT, qstat); |
1584 | return(pid < 0 ? pid : status); |
1585 | } |
4633a7c4 |
1586 | #endif /* !DOSISH */ |
1587 | |
1588 | #if !defined(DOSISH) || defined(OS2) |
79072805 |
1589 | I32 |
20188a90 |
1590 | wait4pid(pid,statusp,flags) |
1591 | int pid; |
1592 | int *statusp; |
1593 | int flags; |
1594 | { |
79072805 |
1595 | SV *sv; |
1596 | SV** svp; |
20188a90 |
1597 | char spid[16]; |
1598 | |
1599 | if (!pid) |
1600 | return -1; |
20188a90 |
1601 | if (pid > 0) { |
1602 | sprintf(spid, "%d", pid); |
79072805 |
1603 | svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE); |
1604 | if (svp && *svp != &sv_undef) { |
463ee0b2 |
1605 | *statusp = SvIVX(*svp); |
748a9306 |
1606 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
1607 | return pid; |
1608 | } |
1609 | } |
1610 | else { |
79072805 |
1611 | HE *entry; |
20188a90 |
1612 | |
79072805 |
1613 | hv_iterinit(pidstatus); |
1614 | if (entry = hv_iternext(pidstatus)) { |
a0d0e21e |
1615 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
79072805 |
1616 | sv = hv_iterval(pidstatus,entry); |
463ee0b2 |
1617 | *statusp = SvIVX(sv); |
20188a90 |
1618 | sprintf(spid, "%d", pid); |
748a9306 |
1619 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
1620 | return pid; |
1621 | } |
1622 | } |
79072805 |
1623 | #ifdef HAS_WAITPID |
1624 | return waitpid(pid,statusp,flags); |
1625 | #else |
a0d0e21e |
1626 | #ifdef HAS_WAIT4 |
1627 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
1628 | #else |
1629 | { |
1630 | I32 result; |
1631 | if (flags) |
1632 | croak("Can't do waitpid with flags"); |
1633 | else { |
1634 | while ((result = wait(statusp)) != pid && pid > 0 && result >= 0) |
1635 | pidgone(result,*statusp); |
1636 | if (result < 0) |
1637 | *statusp = -1; |
1638 | } |
1639 | return result; |
a687059c |
1640 | } |
1641 | #endif |
20188a90 |
1642 | #endif |
a687059c |
1643 | } |
7c0587c8 |
1644 | #endif /* !DOSISH */ |
a687059c |
1645 | |
7c0587c8 |
1646 | void |
de3bb511 |
1647 | /*SUPPRESS 590*/ |
a687059c |
1648 | pidgone(pid,status) |
1649 | int pid; |
1650 | int status; |
1651 | { |
79072805 |
1652 | register SV *sv; |
20188a90 |
1653 | char spid[16]; |
a687059c |
1654 | |
20188a90 |
1655 | sprintf(spid, "%d", pid); |
79072805 |
1656 | sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e |
1657 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
1658 | SvIVX(sv) = status; |
20188a90 |
1659 | return; |
a687059c |
1660 | } |
1661 | |
1050c9ca |
1662 | #if defined(atarist) || (defined(OS2) && !defined(HAS_FORK)) |
7c0587c8 |
1663 | int pclose(); |
79072805 |
1664 | I32 |
1665 | my_pclose(ptr) |
7c0587c8 |
1666 | FILE *ptr; |
a687059c |
1667 | { |
7c0587c8 |
1668 | return pclose(ptr); |
a687059c |
1669 | } |
7c0587c8 |
1670 | #endif |
9f68db38 |
1671 | |
1672 | void |
1673 | repeatcpy(to,from,len,count) |
1674 | register char *to; |
1675 | register char *from; |
79072805 |
1676 | I32 len; |
1677 | register I32 count; |
9f68db38 |
1678 | { |
79072805 |
1679 | register I32 todo; |
9f68db38 |
1680 | register char *frombase = from; |
1681 | |
1682 | if (len == 1) { |
1683 | todo = *from; |
1684 | while (count-- > 0) |
1685 | *to++ = todo; |
1686 | return; |
1687 | } |
1688 | while (count-- > 0) { |
1689 | for (todo = len; todo > 0; todo--) { |
1690 | *to++ = *from++; |
1691 | } |
1692 | from = frombase; |
1693 | } |
1694 | } |
0f85fab0 |
1695 | |
1696 | #ifndef CASTNEGFLOAT |
463ee0b2 |
1697 | U32 |
79072805 |
1698 | cast_ulong(f) |
0f85fab0 |
1699 | double f; |
1700 | { |
1701 | long along; |
1702 | |
27e2fb84 |
1703 | #if CASTFLAGS & 2 |
34de22dd |
1704 | # define BIGDOUBLE 2147483648.0 |
1705 | if (f >= BIGDOUBLE) |
1706 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; |
1707 | #endif |
0f85fab0 |
1708 | if (f >= 0.0) |
1709 | return (unsigned long)f; |
1710 | along = (long)f; |
1711 | return (unsigned long)along; |
1712 | } |
ed6116ce |
1713 | # undef BIGDOUBLE |
1714 | #endif |
1715 | |
1716 | #ifndef CASTI32 |
5d94fbed |
1717 | |
1718 | /* Look for MAX and MIN integral values. If we can't find them, |
1719 | we'll use 32-bit two's complement defaults. |
1720 | */ |
1721 | #ifndef LONG_MAX |
1722 | # ifdef MAXLONG /* Often used in <values.h> */ |
1723 | # define LONG_MAX MAXLONG |
1724 | # else |
1725 | # define LONG_MAX 2147483647L |
1726 | # endif |
1727 | #endif |
1728 | |
1729 | #ifndef LONG_MIN |
1730 | # define LONG_MIN (-LONG_MAX - 1) |
1731 | #endif |
1732 | |
1733 | #ifndef ULONG_MAX |
1734 | # ifdef MAXULONG |
1735 | # define LONG_MAX MAXULONG |
1736 | # else |
1737 | # define ULONG_MAX 4294967295L |
1738 | # endif |
1739 | #endif |
1740 | |
1741 | /* Unfortunately, on some systems the cast_uv() function doesn't |
1742 | work with the system-supplied definition of ULONG_MAX. The |
1743 | comparison (f >= ULONG_MAX) always comes out true. It must be a |
1744 | problem with the compiler constant folding. |
1745 | |
1746 | In any case, this workaround should be fine on any two's complement |
1747 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your |
1748 | ccflags. |
1749 | --Andy Dougherty <doughera@lafcol.lafayette.edu> |
1750 | */ |
1751 | #ifndef MY_ULONG_MAX |
1752 | # define MY_ULONG_MAX ((UV)LONG_MAX * (UV)2 + (UV)1) |
1753 | #endif |
1754 | |
ed6116ce |
1755 | I32 |
1756 | cast_i32(f) |
1757 | double f; |
1758 | { |
5d94fbed |
1759 | if (f >= LONG_MAX) |
1760 | return (I32) LONG_MAX; |
1761 | if (f <= LONG_MIN) |
1762 | return (I32) LONG_MIN; |
ed6116ce |
1763 | return (I32) f; |
1764 | } |
a0d0e21e |
1765 | |
1766 | IV |
1767 | cast_iv(f) |
1768 | double f; |
1769 | { |
5d94fbed |
1770 | if (f >= LONG_MAX) |
1771 | return (IV) LONG_MAX; |
1772 | if (f <= LONG_MIN) |
1773 | return (IV) LONG_MIN; |
a0d0e21e |
1774 | return (IV) f; |
1775 | } |
5d94fbed |
1776 | |
1777 | UV |
1778 | cast_uv(f) |
1779 | double f; |
1780 | { |
1781 | if (f >= MY_ULONG_MAX) |
1782 | return (UV) MY_ULONG_MAX; |
1783 | return (UV) f; |
1784 | } |
1785 | |
0f85fab0 |
1786 | #endif |
62b28dd9 |
1787 | |
fe14fcc3 |
1788 | #ifndef HAS_RENAME |
79072805 |
1789 | I32 |
62b28dd9 |
1790 | same_dirent(a,b) |
1791 | char *a; |
1792 | char *b; |
1793 | { |
93a17b20 |
1794 | char *fa = strrchr(a,'/'); |
1795 | char *fb = strrchr(b,'/'); |
62b28dd9 |
1796 | struct stat tmpstatbuf1; |
1797 | struct stat tmpstatbuf2; |
1798 | #ifndef MAXPATHLEN |
1799 | #define MAXPATHLEN 1024 |
1800 | #endif |
1801 | char tmpbuf[MAXPATHLEN+1]; |
1802 | |
1803 | if (fa) |
1804 | fa++; |
1805 | else |
1806 | fa = a; |
1807 | if (fb) |
1808 | fb++; |
1809 | else |
1810 | fb = b; |
1811 | if (strNE(a,b)) |
1812 | return FALSE; |
1813 | if (fa == a) |
6eb13c3b |
1814 | strcpy(tmpbuf,"."); |
62b28dd9 |
1815 | else |
1816 | strncpy(tmpbuf, a, fa - a); |
a0d0e21e |
1817 | if (Stat(tmpbuf, &tmpstatbuf1) < 0) |
62b28dd9 |
1818 | return FALSE; |
1819 | if (fb == b) |
6eb13c3b |
1820 | strcpy(tmpbuf,"."); |
62b28dd9 |
1821 | else |
1822 | strncpy(tmpbuf, b, fb - b); |
a0d0e21e |
1823 | if (Stat(tmpbuf, &tmpstatbuf2) < 0) |
62b28dd9 |
1824 | return FALSE; |
1825 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && |
1826 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; |
1827 | } |
fe14fcc3 |
1828 | #endif /* !HAS_RENAME */ |
1829 | |
1830 | unsigned long |
79072805 |
1831 | scan_oct(start, len, retlen) |
fe14fcc3 |
1832 | char *start; |
79072805 |
1833 | I32 len; |
1834 | I32 *retlen; |
fe14fcc3 |
1835 | { |
1836 | register char *s = start; |
1837 | register unsigned long retval = 0; |
1838 | |
748a9306 |
1839 | while (len && *s >= '0' && *s <= '7') { |
fe14fcc3 |
1840 | retval <<= 3; |
1841 | retval |= *s++ - '0'; |
748a9306 |
1842 | len--; |
fe14fcc3 |
1843 | } |
748a9306 |
1844 | if (dowarn && len && (*s == '8' || *s == '9')) |
1845 | warn("Illegal octal digit ignored"); |
fe14fcc3 |
1846 | *retlen = s - start; |
1847 | return retval; |
1848 | } |
1849 | |
1850 | unsigned long |
79072805 |
1851 | scan_hex(start, len, retlen) |
fe14fcc3 |
1852 | char *start; |
79072805 |
1853 | I32 len; |
1854 | I32 *retlen; |
fe14fcc3 |
1855 | { |
1856 | register char *s = start; |
1857 | register unsigned long retval = 0; |
1858 | char *tmp; |
1859 | |
93a17b20 |
1860 | while (len-- && *s && (tmp = strchr(hexdigit, *s))) { |
fe14fcc3 |
1861 | retval <<= 4; |
1862 | retval |= (tmp - hexdigit) & 15; |
1863 | s++; |
1864 | } |
1865 | *retlen = s - start; |
1866 | return retval; |
1867 | } |